LI-COR LI-200R User manual

Installing the LI-200R Pyranometer in
Biomet Systems
The LI-200R Pyranometer (part number 7900-195) measures
hemispherical solar radiation. Here we provide basic install-
ation and operation instructions for using the LI-200R
Pyranometer in a LI-COR biomet data acquisition system.
LI-200R Specifications:
Spectral response: 400 to 1100 nm
Energy range: 0 to 1000 W/m2
Absolute calibration: ±5%
Output signal: 0 to 100 µA
Linearity: Maximum deviation of 1% up to 3,000
W/m2
Cosine correction: up to 80° angle of incidence
Azimuth error: <1% over 360° at a 45° elevation angle
Cable lengths: 5 and 50 meters
Siting the pyranometer
Position the LI-200R so it will never be under a shadow,
either from the surrounding landscape elements or from the
tower itself. Mount the sensor on the tower to minimize
reflected radiation that is visible to the sensor.
Mounting the pyranometer
Mount the LI-200R in the mounting and leveling fixture
(2003S). Attach the 2003S to the 7900-350 radiation sensor
bracket and level the 2003S. Secure the cable to the tower
using zip-ties.
Wiring the pyranometer
The bare leads connect directly to the DAqM.
Description Color Terminal
Signal (-) Brown A17
Signal (+) Blue G9
Shield Bare G9
If you want to connect the LI-200R to a channel other than
A17 or A18, a millivolt adapter is required.
Entering calibration data
Enter the calibration multiplier in the Blueprint Utility soft-
ware. The multiplier on the calibration certificate is under
For use with LI-COR handheld meters and loggers: (units are watts
m-2 per microamp).
Installation Guide
1

Select a program (Biomet Library) and then enter the cal-
ibration multiplier from the calibration sheet.
Save the configuration and push the file to the data acquis-
ition system after entering the remaining calibration inform-
ation.
Retrieving data
The SmartFlux System will log these data in compressed
files for processing by EddyPro Software and evaluation by
Tovi Software. Data are stored on the USB drive on the
SmartFlux System. Refer to the Data Acquisition System
instruction manual for details.
Maintenance
Keep the surface and vertical edge of the acrylic diffuser
clean. As needed, clean the diffuser sensor with water, mild
detergent, or vinegar dilute using a soft, lint-free cloth. DO
NOT use alcohol, organic solvents, strong detergents, abras-
ive solvents, or abrasive cloth on the diffuser. Return the
sensor to LI-COR for factory recalibration every two years.
Contact technical support for more information.
Copyright © 2020 LI-COR, Inc. All rights reserved.
988-12677 Rev 3•10/2020
LI-COR Biosciences
4647 Superior Street
Lincoln, Nebraska 68504
Phone: [phone]
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[e-mail]
LI-COR Distributor Network:
www.licor.com/env/distributors
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LI-COR Biosciences GmbH
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Germany
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[e-mail]
LI-COR Biosciences UK Ltd.
St. John’s Innovation Centre
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Cambridge
CB4 0WS
United Kingdom
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[e-mail]